They wanted to prove that the brain could survive separated from the body, so they decapitated a dogs head and put in tubes to keep oxygenated blood flowing. They managed to keep the dog alive for 2 hours I think, it could actually be longer. They also attached a smaller dogs head to a larger dogs body so that the body of the still living dog did what I explained above instead of tubes.
They were dicks.

I'm Russian and I ******* read all that an d it scared the living **** out of me. It has top secret written all over it like you'll be ******* shot and it says you need a Collie breed head attached to some machine and jesus ******* christ